package com.zy.biz;

import com.zy.dao.ProductOrderDao;

/**
 * @program: maven3
 * @description:  A-> B-> C -> D  ->A
 * @author: zy
 * @create: 2025-09-08 15:31
 */
public class ProductOrderBiz {
    //硬编码， 紧耦合.
    private ProductOrderDao productOrderDao=new ProductOrderDao();

    public void addOrder(){
        productOrderDao.addOrder();
    }
}
